The text shown in
Figure 8 should appear in your browser when you open
the html file in your browser.

Figure 8 . Screen output for Listing #3.

Hello from JavaScript
vecResultMag = 8.11vecResultAng = 90.49
The End

As you can see, the displacement vector is just a little over eight meters at
an angle of about 90.5 degrees. In other words, your ending position wasapproximately 8 meters north of your starting position. Hopefully you were able
to arrive at a very similar answer using vector diagram.

Explanation of the code

The code in
Listing 3 is very similar to the code in
Listing 2 . However,
there is more of it because the code is adding four vectors instead of only 2.

As before,
Listing 3 begins with the
getAngle method that we developed
earlier.

Magnitude and angle for each vector

Then
Listing 3 defines eight variables containing the magnitudes and angles
of the four segments of the walk.

(Note that the names that I used for the variables in this script are
somewhat simpler than the names that I used in
Listing 2 .)

Horizontal and vertical components

Following that,
Listing 3 computes the horizontal and vertical components for
each of the four vectors and saves those values in eight different variables.

Sums of components

Then
Listing 3 computes and saves the sum of all
four horizontal components and computes and saves the sum of all four verticalcomponents.

After that, there is essentially no difference between the script in
Listing
3 and the script in
Listing 2 .

Other vector operations

In addition to the addition and subtraction of vectors, there are other
operations that can be performed using vectors, such as the dot product andthe cross product. However, those operations are beyond the scope of this
module.

Run the scripts

I encourage you to run the scripts that I have presented in this lesson to
confirm that you get the same results. Copy the code for each script into atext file with an extension of html. Then open that file in your browser. Experiment with
the code, making changes, and observing the results of your changes. Makecertain that you can explain why your changes behave as they do.

Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material

Module name: GAME 2302-0360 Motion -- Displacement and Vectors

File: Game0360.htm

Published: 10/13/12

Revised: 02/01/16

Financial : Although the Connexions site makes it
possible for you to download a PDF file for this module at no charge, andalso makes it possible for you to purchase a pre-printed version of the PDF
file, you should be aware that some of the HTML elements in this module maynot translate well into PDF.

I also want you to know that, I receive no financial compensation from
the Connexions website even if you purchase the PDF version of the module.

In the past, unknown individuals have copied my modules from cnx.org,
converted them to Kindle books, and placed them for sale on Amazon.comshowing me as the author. I neither receive compensation for those sales nor
do I know who does receive compensation. If you purchase such a book, pleasebe aware that it is a copy of a module that is freely available on cnx.org
and that it was made and published without my prior knowledge.

Affiliation : I am a professor of Computer
Information Technology at Austin Community College in Austin, TX.

-end-

Questions & Answers

anyone know any internet site where one can find nanotechnology papers?

fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.

Tarell

what is the actual application of fullerenes nowadays?

Damian

That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.

Tarell

Join the discussion...

what is the Synthesis, properties,and applications of carbon nano chemistry

Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.